Device for cooling plungers of bottle-blowing machines.



S. E. WINDER.

DEVICE FOR 000mm; PLUNGEES OF BOTTLE BLOWING MACHINES.

' APPLICATION FILED JAN.30, 1912.

LWRY, 1 98., Patented Mar. 25, 1913.

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APPLICATION FILED JAN. 30, 1912.

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WITH STATES PATENT onerous.

SAMUEL E. WINDER, 0F WALTHAM, MASSACHUSETTS, ASSIGNOE OF FORTY-NINEOI\TE HUNDREDTHS TO HENRY C. DAUBENSPECK, OF WASHINGTON, PENNSYLVANIA.

\ Specification of Letters Patent.

Patented Mar.25,1913.

Application filed January 30, 1912. Serial N 0. 674,315.

To all whom it may concern.

Be it known that l, SAMUEL E. WINDER, a citizen of the United States,residing at \Valtham, county of Middlesex, State of Massachusetts, haveinvented a new and use ful Device for Cooling Plungers of Bottle-Blo'wing Machines, of which the following is a specification.

My invention relates to a new and useful device and method for retainingthe plunger of a glass machine at a desired temperature by subjectingthe same to the action of a cooling medium at predetermined times.

It further consists in passing water or other cooling medium or agentinto the plunger while the same is in the glass and in cut-ting off orreducing the supply of water as the plunger is removed from the glass,so that the interior will remain at substantially an even temperatureand will not mark the glass. A

It further consists'of a valve for controlling the supply of water andin providing means for adjusting the valve whereby the amount of waterpassing therethrough may be varied.

It further consists of other novel features of construction, all as willbe hereinafter fully set forth.

The annexed drawings and the following description set forth in detailone mechanical form embodying the invention, such detail constructionbeing-but one of various mechanical forms in which the principle of theinvention may be used.

Figure 1 represents an elevation of a form of press-head for hollowglassware machines showing my device in position there on, and showingthe upper portion of a mold. Fig. 2 represents a sectional view of avalve employed, on an enlarged scale. Fig. 3 represents, on an enlargedscale, a portion of the plunger employed. Fig. d represents an endelevation of a portion of a machine showing a means for actuating theplunger with the parts, shown in the other figures, on a smaller scale.

Similar numerals of reference indicate corresponding parts in thefigures.

Referring to the drawings, in hollow glassware machines it is importantto retain the plunger at a substantially even temperature to prevent thesame from becoming overheated and at the same time to prevent the samefrom becoming so cold asto mark the glass. My invention is designed toaccomplish this purpose and to this end I pro- Vld a valve whichisopened by the opera- "tion of the press-head to allow water or othercooling agent to 'ass into the plunger when the same is in t e glass,and as the plunger is drawn from the glass, the valve is closed orpartly closed so that the, heat in the plunger will drive out the water,allowing the interior to remain at a substantially even heat which willprevent the plunger from becoming'toocold and so marking the less. Ifurther provide means in the valve or adjusting the same in order thatthe amount of the cooling medium passing therethrough may be varied in.order that the requisite amount of cooling medium may pass through theplunger in order to hold the same at one heat.

1 designates the lower spring plate carrying. the bolts or pins 2 andprovided with-a bracket 3.

4 designates the top spring plate having suitable openings through whichpass the pins 2, which are provided with nuts 5, which serve as stops,to limit the outward movement of the top plate. 4, suitablenected with acrosshead 9, which carries the vhollow plunger 10 which passes through asuitable opening in the lower spring plate 1. The crosshead is providedwith the bosses or guides 11 through which extend pins 12 carried by thelower plate 1 which serve to guide the cro'sshead in its movement. Inthe crosshead I provide a passage 13 which communicates with a pipe 14extending suitably into the plunger 10, which pipe is provided with asuitable number of ports 15 at intervals, and the lower end of which isclosed; The passage 13 is adapted to communicate with a pipe 16 leadingfrom a suitable. source of water, or other cooling medium, supply. 17designates a second passage on the crosshead 9, which is incommunication with the interior of the plunger 10 and also with a pipe18 leading to a suitable point of discharge. At a suitable point in thesupply pipe 16, I provide a valve 19 for controlling the passage of theof the casing 20 whereby the position there-- of maybe varied so that itcan be positioned near or away from the valve seat 23, whereby the throwof the valve proper 24 may be controlled by reason of the engagement ofthe pin 25 with the inner wall of the pocket 26. A spring 28 around-thepin'25 and abutting the screw 27 and valve 24 serves to normally holdthe valve 24 in engagement with and'return the same to its seat 23, asuitable portion of the said spring 28 being seated in the race 29 ofthe valve. 30 designates a' pin bearing on the valve 24 and passingthrough a boss 31 on the casing and extending exteriorly thereof. Asuitable stufling box 32 is provided for the valve and for the pin and asuitable stuflin box 33 is provided for the screw 27. Carried by thevalve, casing is an arm 34 to which is pivoted a lever 35, one end ofwhich is adapted to bear on the pin 30 and the other end of which isconnected witha spring 36, which is also connected with a screw 37-,which is in engagement with a suitable portion of the bracket 3 and isadjustable with respect thereto and held in its adjusted positions bythe nuts 38, whereby the ension of the spring 36 may be varied. 39designates a plunger ring suitably mounted with respect to the plate 1and is adapted to contact with the mold 40 at the proper time.

In some instances I may find it of advantage to control the flow of thecooling agent in order that a small quantity thereof will flow into theplunger when the same. is' removed from the glass and to this endI haveprovided a set screw 41 mounted in an extension 42 of the arm 34 and sosituated that the same can be positioned to act as a stop for the pinend of the lever 35, so that the same cannot rise sufiiciently topermitthe valve 29 to completely seat, whereby a small quantity of the coolingagent may 7 reach theplunger when it is removed from theglass and by theaction of the lever 35 previously described a large quantity may passinto the plunger when it is in the glass. I desire it understood thatany suitable means may be employed for actuating the plun er, as it maybe driven by air, mechamcally or by hand power. I have shown in Fig. 4 ameans for accomplishing this, in which 43 is a main drive shaftreceiving power from any suitable source as by a hand lever 44. 45 arecranks carried by the shaft 43, having the pins 46, engaged by theconnecting rods 47 which are likewise connected with the crosspiece 48by the pins 49. The crosspiece 48 is connected with the piston rod 8which also carries the Crossbars 49 which latter are guided in theirmovement by the rods 50 carried by the frame or table 51 which likewisesupports the mold 40. In this way the plunger and parts therewith arereciprocated.

It will be noted that by reason of the movement of the spring 36 in theopening means of the valve, I am enabled to open quickly the valvemember in order to provide for a full flow of the cooling medium intothe plunger at the proper time. This is accomplished by reason of thefact that as the spring plate 1 is arrested in its movement, uponcontact with the mold 40, the bracket 3 is also stopped in its movement.

As the other parts continue their downward 'movement with the plunger10, the spring 36 will beextended and as this tension acts against thevalve closing pressure, that is,

of the lever 35-with which it is connected,

in ,order to quickly depress the end to open the valve members 24. Bythis means a full flow of the cooling medium is obtained and will enterthe plunger at the proper time. This is of considerable advantage over astructure where a slow opening valve is employed. since a small quantityof the cooling fiuid in this case would be permitted to e ter theplunger and the flow of the cooli g medium would be gradually increasedas the valve opened.

The operation of the device is as follows It will be understood that thespring 36 normally holds the lever in the position seen in Figs. 1 and 3with the pin 30 in elevated position and that the spring 28 normallyholds the valve 24 in engagement with the seat 23 so that no water canpass through the valve 19. When the piston rod 8 is lowered it carrieswith it the top plate 4,

crosshead 9 and all-parts carried thereby.

When the plunger ring 39 seats itself on the'mold 40 the lower plate 1and parts carried thereby will be prevented from further movement andthe rod 8, crosshead 9 and plungenlO will still continue to descend,forcing the plunger 10 into the glass. As this action takes place thespring 36 will elevate one end of the lever 35 and depress the pin endthereof forcing in the pin 30 and removing the valve proper 24 from theseat 23, so that the water, or cooling medium, can pass through thevalve, the passage 13 into the pipe 14 and will be discharged throughthe ports 15 into the is in the glass. moved from the glass after 1 theproper length of time, by the presser or automaticombination of aplunger having an inlet interior of the plunge-r 10 while the same Whenthe plunger is recally, the springs 6 will immediately act and this willrelieve the tension on the spring 36 causing the same to actuate thelever 35 to release the pin 30, whereupon the spring 28 will cause thevalve proper 24. to be seated and cut ofl' the water, where upon theheat in plunger 10 will drive out the water therein through the passage17 and pipe 18. By this means the plunger will be supplied with thewater or cooling medium, while in the glass, and(wil1 be prevented frombeing overheated and as the supply of the water or cooling medium is cutOH or reduced as the plunger is removed for the glass the said plungerwill not become cold enough to mark the glass but will be retained atsubstantially an even temperature. By mea-nsof the adjustmentof the.

throw of the valve proper, I can regulate the amount of water or coolingmedium supplied to the plunger, as it will be apparent that thedifferent amounts of water are required to accomplish the'purposedepending on the size of the plunger, since a small plunger will notneed the same amount as a large one. By means of the stop 41 the partscan be regulated to-permit a certain flow of the cooling agent when theplunger is removed from the glass, if this is necessary.

Other modes of applying the rinciple of my invention may be employed forthe mode herein explained. Change may therefore be made as regards themechanism thus disclosed, provided the principles of construction setforth, respectively, in the following claims are employed.

Having thus described my invention, what j I claim as new and desire tosecure by Letters Patent, is

1.. In a device of the character stated, the

and outlet for a cooling medium, a valve controlling said inlet, thevalve member of ,which is adapted to be seated by the pressure of thecooling medium, and means embodying a spring member for-opening saidvalve when said plunger is in the glass,

said spring member having its tension acting against the valve-closingpressure when the plunger is depressed, whereby the valve member isopened quickly to introduce the proper amount of water into the plungerwhile the latter is in the glass.

2. In a device of the characterstated, the combination of a. plungerhaving an inlet and outlet. for a cooling medium, a valve controllingsaid inlet, the valve member of which is adapted to be seated by thepressure of the cooling medium, a spring hearing againstthe valve memberon the inlet side, to assist in closing said valve member, and meansembodying a spring member for opening said valve when said plunger is inthe glass, said spring member having its tension acting against thevalve-closing pressure when the plunger is depressed, whereby the valvemember is quickly opened to introduce the proper amount of water intothe plunger while the latter is in the glass. a

3. In a device of the character stated, the combination of a plungerhaving an inletand outlet for a cooling medium,- a valve controllingsaid inlet, the valve member of which is adapted to be seated by thepres- SAMUEL E. WINDER.

Witnesses:

JOHN REINEHR, E. OMALLEY.

